If I understand correctly, at least for Shopify I can already find products using: https://shopify.dev/docs/agents/catalog/mcp
and if I want to checkout I can use https://shopify.dev/docs/agents/checkout/mcp.
Although I think at least currently I need to request approval from Shopify to even use the checkout API - I believe they are rolling it out slowly (?)
Is it correct to say that your tool looks allows me to skip Shopify APIs and create my own AI agent to speak UCP directly to merchants?